/Engine/Source/Editor/UMGEditor/Public/UMGEditorModule.h
typedef TBaseDelegate_OneParam< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IPropertyTypeCustomization](API\Editor\PropertyEditor\IPropertyTypeCustomization) >, [TWeakPtr](API\Runtime\Core\Templates\TWeakPtr)< [FWidgetBlueprintEditor](API\Editor\UMGEditor\FWidgetBlueprintEditor) > Editor > FOnGetInstancePropertyTypeCustomizationInstance